Next two satellites are prepared for launch

The next two satellites in the Galileo European navigation have been subjected to an aggressive vacuum conditions and extreme temperatures in preparation for launch, scheduled for September 28. The fourth satellite Galileo completed earlier this month 20 days of thermal vacuum tests on the location of Thales Alenia Space on the outskirts of Rome, Italy. The third had passed the same test a month earlier.

The moon

The moon is the most important desire of each amateur. The additional and superior we appreciate it, the additional we desire to identify. Its closeness make us look elder than it is, and moving quickly across the sky, where it actually runs about 12 ° per day, or about half a degree per hour (its apparent diameter).

It appears that, the unfruitful planetary shell has not changed during history known to guy because if we compare the first known maps with today, however elementary they may be does not differ in their details.